349732845 has 72 divisors (see below), whose sum is σ = 769335840. Its totient is φ = 145333440.

The previous prime is 349732841. The next prime is 349732847. The reversal of 349732845 is 548237943.

It is not a de Polignac number, because 349732845 - 2² = 349732841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 349732845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349732841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17046 + ... + 31464.

It is an arithmetic number, because the mean of its divisors is an integer number (10685220).

Almost surely, 2^349732845 is an apocalyptic number.

349732845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

349732845 is an abundant number, since it is smaller than the sum of its proper divisors (419602995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349732845 is a wasteful number, since it uses less digits than its factorization.

349732845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14455 (or 14445 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 349732845 is about 18701.1455531473. The cubic root of 349732845 is about 704.5505207948.

The spelling of 349732845 in words is "three hundred forty-nine million, seven hundred thirty-two thousand, eight hundred forty-five".